Cannula holder



FIG. 1 is a perspective view of a cannula holder showing my new design in its environment;

FIG. 2 is a left side elevation view thereof, a right side elevation view being identical thereto;

FIG. 3 is a front elevation view thereof, a rear elevation view being identical thereto;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is another perspective view thereof.

The broken lines are shown for environmental purposes only and form no part of the claimed design. 

CLAIM The ornamental design for a cannula holder, as shown and described. 